I picked up the eldest daughter whose engagement was broken off and taught her to do bad things

Aaron, a magician who lives deep in the forest and hates interacting with people, is not only called the "Demon King", but everyone around him is also afraid of him. Living as a hermit, one day he picked up Charlotte, the daughter of a wealthy woman, lying on the roadside. She was accused of unwarranted charges, and she even regretted her marriage and fled here from her motherland. After hearing the whole story, Aaron recalled his bitter experience of being betrayed by a member he believed to be his partner. After hearing that she was only seventeen years old and had been living a life of oppression, Aaron made up his mind—— Let her live in your own home... teach her all kinds of bad but happy things.